Driving, braking, and coasting mechanism.



No. 821,701. PATENTED MAY 29, 1906-.

G. H. CHENEY. I DRIVING, BRAKING, AND COASTING MNGHANISM. Y

APPLICATION FILED Nov. 28, 1900.

SSHNETSHSNBNT 14 imm @W @muil-ww. @LW a 110. 821,701. PATENTED MAY 2.9, 1906.

G. H. CHENEY. QRLVIN'G, BRAKING, AND' COASTING MECHANISM.

APPLICATION FILED NOV. 28. 1900.

3 SHEETS-SHEET 2` A 1 NVENTD R.

No. 821,701. PVATNNTED MAY 29. 190e G. H. CHENEY. DRIVING, BRAKING, AND GOASTING, MEGHANISM.

APPLICATION FILED NOV. 28. 1900.

3 SHEETS-SHEET 3.

WVNNESEEE m y NVENTNF\ .narran sacarse GERGE H. CHENEY, OF ROCHESTER., NEX/V YORK. DRH/ING, SHARING! AND CGSTUNG iii'iEGtiaNiSNi..

Speccation of Letters Patent.

Patented May 29, i905).

Application tiled November 28,1900. Serial No. 38,010.

T0 aZZ whom t nur/y/coltcrn:

Be it known that I, GEORGE H. CHENEY, a

citizen ofthe United States, and a resident o'l i Rochester, in the county of Monroe and State of N ew York, have invented certain newfand useful Improvements 1n Driving, Braking,

and Uoasting Mechanisms, of which ti e. iolr lowing is a specificati `m.

The object of my invention is to provideI a driving, a braking, and a coasting mechanism for use in connection with vehicles, and particularly adapted to bicycles.

It consists in t! 'e ldevices and combinations hereinafter set forth and claimed.

In the form of my invention described in this specification and shown in the drawings the driving and the braking niechanisms are so constructed that they cooperate. Tt is not necessary, however, that the driving and the braking mechanisms should be used together. 'lhey may be used separately, and each will be as ellicient when so used as when they are used together.

Some of the advantages of my device over prior devices are. its greater simplicity and strength, the smaller number ot' parts involved in its construction, the ease and rapidit)r with which it can be assembled and taken apart, and tlel removal of strain upon the bearings when it is in operation.

In the accompanying drawings, Figure i is ay verticaly longitudinal section through the hub of the rear or driving wheel oi a bicycle equipped with my driving, braking, and coasting mechanism; ln this ligure the driving mechanism is shown in its noli-engaged position and the braking mechanism m its engaged position, which are the positions that said parts assume on back pedaling. F.g. 2 is a cross-section on thc line 2 2 of Fig. 1 looking to the right. Fig. 3 is ay cross-section on the line' .5 ol. Fig. l looking to the right. l*`g. 4,is a crosssect;on on the line #i -i oll Fig. 1. looking tothe right. Fig. 5 is a cross-scction on tic line 5 5 oll Fig. l looking to the rght. Fig. (i is an end view, looking to the right, oi' part ol' the driving meclninisnito he described. Fig. 7 is also a vertiifal long,tudi nal section ol' tlc rcaror driving w,l.cel ol' a bicycle'equipped with my driving, braking, and coasting nnchanisin, the driving mechanif'm being shown in its engaged position and tl c braking mechanism in its disengaged position', which are the positions ol. said parte in l'orward pedaling. Fig. S is a side view ol' one oi the parts oll t'l-i'e device. Fig. i) is i.

l side view olt another part.

i i i l i i i i i l i i i i i ig. it? is an enlarged vertical section of the rear or driving wheel between the lines 4 4 and 5 :5 oi i, showing portions ol the mechanism in a nonengaged position: and Figs. il, i2, i3, i4, and 15 are views oi' modifications of details.

Reference being had to the acc(mipanying drawings, A is the axle ol' the rear or driving wheel oi thebicycle, and B is its hoiiow outer hub. The internal portion of this hub which lies between the spoke-flanges if has a portion b adjacent to each spoke-flange and between these portions the conical portions 02 that meet midwayv between said spoke-lianges. The doubic conical portions b2 constitute a iange or rib forming part of the hub for the engagement oi a friction-clutch. H is a triction-ring oil such size as to -tit snugly within the portion in one end oilv said hub. This ring is l-eld in place by a cup that is screwed into the threaded end of the huh i5 with a rig,hthai1d thread and Ylirmijv against said ring. 'i'ie inner hub is revoiubie upon the axle A and has two flattened sides, as shown at c c in Figs. 3, 4, and .5. The outer end of this inner hub C is integra-i with a collar D. Upon. thethrcvded shoulder d oi' this collar l) is screwed a sprocket-wheel t5, through which power is transmitted from thepedals to the rear wheel oll the bicycle, or one member oi' a pair oll gears may be attached thereto in like manner, for my invention is adapted to be used in connection both with bicycles that are equipped with chain and sprocket and those that are equipped with maniv oll the chainless gea-ring devices employed for the transmission of the driving power from the pedals to the driving-wheel. A nut s is screwed upen the threaded end dof the collar and locks in place the sprocket or the gear, whiclever is employed. v

The interior ol theinner hub (l is oi larger diameter than the axle A, asshown in Figs. l

and 7, so that there is no contact between said paris when in position. The inner end. r/` ol' said inner hub isrepresented in the draw ings as ol' slightly less interior diameter than the rest oll the hub and is journaled in the end of a. block IG upon antilfrietion-rolis e, that. are secured in a raceway in said block (see Figs. i, '2, and 7) in angv suitable manner. 'lhc block E supported on the axle A and is non-revoluble., ashereinai'ter explained. Said inner hub is revolublysupported atits other end by balls d, that are placed in a bail-race formed between the inner side of an cniarge- TOO ' threaded end a of the aXle A.

ment or collar D on said inner hub and a cone F, the latter being screwed upon the Balls d4 in a ball-race formed between the outer side of the enlargement or collar D, and 'a cup B3, that is screwed into the end of the hub B with a leftdiandy thread, retain the said hub in place and permit its free rotation.. The said cu B3 has a friction-surface upon its inner si e which cooperates with another part of the device, hereinafter to be described, in order to assist in retarding the revolution vof the outer hub B on back pedaling. A lever or arm G, that is eut out, as shown at g in Fig. 9, fits u on the end of the block E, beforcreferre to, in the manner indicated in Figs. 1

and 7, and when placed upon said block and `attached to the frame of the bicycle by a suitable clamp (not shown) it prevents the said block E from turning. A lock-nut Il upon the threaded portion a of the axle A retains the parts E and G in place and is of proper length and thickness to fit snugly between `the block E and the axle A, and thus support theformer. (See Figs. 1 and 7.) Balls c in a ball-race 4formed between the outside of the block E and the cup B2 afford a bearing for this end of the outer hub B.

I Will now describe those features of myinvention that particularlyr relate to the driving mechanism.

A sleeve Itshown in Fig. 8) fits upon the inner hub C. '.lhe bore of the said sleeve is fitted to the fiat sides c c of the said inncrhub,

' as shown in Figs. 4 and 5, so that said sleeve and hub must revolve together. lt is best.,

however, that the sleeve be free to move longitudinally upon the inner hub. Any mode 0f attaching said sleeve on said hub so to be non-revoluble thereon, but capable of lon gitudinal movement thereon, is ap ci uivalent for the construction shown in the drawings.

Upon'the outside of said sleeve are right and left male threads i and i. (See Fig. 8.) 'lwo clutch members J and J have female threads corresponding, respectively, with the threads tand i. on the surface ol' the sleeve l, upon which they are placed. Said clutch members J and J have. surfaces fitting thc flange or rib above mentioned on the inside ol' the outer hub B and are shown as having conical surfaces fitting the inner surfaces of the. portions r* )2 of the outer hub B, so that. the surfaccsofsaid membcrsJ andl may bebrought tated forward with reference to the clutch members J and J and carries with it the sleeve l. the said members J and J will be' made to approach each other until said members are brought into contact with the conical surfaces e2 b2 of the outer hub B and that then they will clamp said conical surfaces and operate as a clutcli to drive the said outer hub B forward with the inner hub C. Ido not limit myself to the exact form .of mechanism shown in the drawings, for the several members that constitute it are susceptible of modification without departing from its scope. rl`hus an inwardly-projecting flange or shoulder b" on the inside ofthe hub B1", integral therewith or attached thereto, (see Fig. 14,) may be clutched by said clutch members in the. manner above described.` Again, one of said clutch membersI may be omitted, as shown in full lines in Fig. 14., or the other member may be employed only to press against an abutment, as hereinafter described. The outside of the inner hubl C1 may be made round (see Fig. 14.) instead of flattened, as indicated by c in the drawings, and may have upon its outer surf acc the right and lcft hand threads il and i, as shown in Fig. 14, so as to dispense with the sleeve l; but it will be'found in practice that with the `particular form of my device. shown itsscveral parts can be much more readily assembled when the sleeve] is employed than when the clutch members J0 and J 'are placed directly upon the inner hub C1", and said clutch members will adjust themselves automatically to the Harige or rib of the outer hub. ln Fig. 14 the clutch member Jl1 is indicated by dotted lines, and in this construction the inner end of the inner hub is shown supported on rolls el" in the hub lC". (See Fig. 15, which is a cross-section on the4 line 15 15 oll rig..'14.)

Although' the clutch or driving mechanism is shown in combiimtion vvith brakingmeehanisms with which it cooperates, i1 isobvious that the said clutch may be employed withoiit any of tlie braking mechanisms shown and without-modilication.

lt remains todeseribe the construction ol" the brake mechanism.' ln the form of my invention illustrated' in the. :u-.eompanying drawings l have a braking mechanism on each sido of thehub. 'lhe brake on. the. right-hand side oll the hub consists ol' a disk K, that has a perforation through its center corresponding with the llattened portion of the inner hub (l, upon which it is loosely placed so that itis revoluble'with the inner hub C, but movable. longitudinally thereon. This disk K is shown with an inward flange lc, that lies against one of the members J of the driving-clutch, and its outer side .has a fricroo IIO

A concentric with the axis of the shoe. 45

eem/ei tion-surface adapted to engage with the friction-surface on or attached to the router hub B, which conveniently may-be back of the of the hub, I provide a brake-shoe L, which in the form shown is split into the blocks L L2 L3 L4,Fig. 2, arranged around the block E, hereinabove referred to, which are res tained uponsaid .block E and in contact with each other by the spring-ring M, whichencircles them, but permits them to be exand ed against its tension outward from said )lock E and apart from each other. 'Ihe spring M lies in av groove in the exterior of said shoes, as shown in Figs. l and 7. In the form shown that portion of the block with which the brake-blocks come in contact is square with beveled edges, as indicated by e2, e3, e, and e5 in Fig. 2. Four brake-blocks of the same size and shape are employed and are formed to fit the said squared block E yand to lie within the ring B inside the hub B. The said shoes join. each other above the beveled edges e2, e3, e4, and e?, respectively, of the said block E, and it should be noted that the radial distance from the lcircuinferencel of said shoes to said beveled edges of said block E is less than the radial distance to any other point on the surface of said block, so that each brake-'shoe constitutes a double wedge between the block E and ring B, the points of each double wedge being directed in an opposite direction. When. the shoe L is divided, the outer surface of the block E may have any form other than cylindrical and '.lhe outer surfaces Z of the brake-blocks are friction-surfaces adapted to engage with the friction-ring B. -The inner sides of the said blocks are hollowed out, so that whenplaced together around the block E the cavity thus vformed within them is a regular hollow cone withA the base of the cone next the outer hub B, and the clutch member J is conical so as -to fit into the hollow cone in the brake-shoe L. A circular lip Z2 (see Fig. l0) is formed upon the edges of said shoe. lts function will hereinafterbe described. The cup B, hereinbefere referred to als/containing the balls e has a flange bi at an'obtuse angle to threaded portion, as shown inFgs. 1 and 7,wl1ose outer surface. isfinished in africtionsurf ace, (conical in the form shown,) so that it may alsok constitute one i'nember of a friction-brake. Theother meml er'oftl1is brake consists of the saidbrake-blocks L L2 L3 L4 of the brake-shoe li, whose inner' sides Z (conical in the form shown) are formed at an angle with their outer sid'es Z 'that will cause the brake-shoe L to fit against the flange b3. Thus the said brake-shoe isiadapted also to come into brakin contact wlth the frictional flange b3 of t .e cu B2. The operation of these several parts o this brake is as follows: When the clutch member J is forced against the inclined surfaces Z3 of the brakeblocks, the inclination of said surfaces causes the said blocks to be forced outwardl-y toward the friction-ring B and the frictionsurfaces Z to come in contact with said friction-ring, the pressure of the member J overcoming the tension of the spring M, and said. blocks are at the same time forced against the friction-surface b3 of the cup B2 and are expanded both by the conical end of the member J and by the conical surface of the flange b3. At the same time the back pressure on the clutch member J is resisted through the sleeve I, the clutch member J the ringr K, and the abutmentBl.

The revolution ofthe hub B, with the segments of the brake-shoe L pressing against it, produces a tendency of the brake-shoe to revolve with the hub, and this moves the segments with relation to the. squared block E, so that the segments are wedged against the Vangular surfaces of said block, and because the block is held stationary by the arm (if the wedging reacts agaiist the hub, producing greater friction and more braking action thereby. rl`his brake which I have described is capable of modification in many respects, and it is notl i'iecessary that it should exercise all of the functions which l have referred to above. More than l'our and less than four brakeblocks maybe employed. lt is also obvious that the shape ol such blocks may be varied and that part ol' the squared block upon which they rest muy be changed to corresi'iond to them and that they will still be cap'al'ile of performingthe saine functions. lhe friction-ring B may be omnted, and the brake-shoe may press directly agaizst the interior of the hub. rlhc employmert of a series of brake-blocks is not essential to tn is braking device. The shoe may be continu-` ous and maybe forced against a l ial i.g-sui' face attached to or forming part of the hub,` sueltas that on the llange li", Fig. 14, and when a continuous brake-shoe is employed the clutch member may be attached to or integral with it, as shown in Figs. 14 and 15, lfig. llbeing a cross-seetion on the lines 15 l5 of Fig. i4. (ine. form of this,modification is found in the -parts'd l andthe frictionsurl'ace on the abutment B.v 'lhe clutch member and the brake-shoe may therefore be considered as a single device movable longitudinallyin one direction lforclutching, in the other direction for braking, and having a, intermediate position for coasting. ln order tofaecelerate the operation ol"A this -brake and IOO also to increase its efficiency, I have added another device to those already described for forcing the brake-shoe L or the brake-blocks L L2 'L3 L4 out against the brake-surface.

mally caused to project from beyond the sur! face of said clutch member by a'spring O, that lies in a cavity n in said latch ar d which bears against the shoulder ji at the end. of said socket. Grooves Z4 are ent in the brakeshoe L or brake-blocks LL2 L Lt, so as to leave shoulders (see Fig. 3) for engagement of the latch when the clutch member J moves backward. If the frietional cont-act between the clutch memberJ and the sleeve lis enough to causesaid clutch member to rotatewith said sleeve, the latch j is forced by its sprirg O against said brake-shoe and into that one of said grooves which is nearest when the clutch member J is brought into contact with said brake-shoe, so that said latch comes in contact with the correspondirg shoulder adjacent to such grooveand prevents the further rotation of said clutch member J.. In Figs. 11, 12, and i3 is shown a modification of the latching or clutching device. The

latch or clutch is not used, and in its place a clutching means is employed consisting of a continuous series of teeth ym on the conical out er-surface of the clutch member J2",which replaces the clutch member J. Each brakeblock L20 of the series designated inthe other tigures, as L L2 L3 li,-hz:s a narrow portion provided with teeth t2", adapted to engage.

the teeth P" on the clutch'memben llence when th'e clutch member J2" moves into cor..- tact with the brake-blocks L20 the parts become firmly engaged, which etleet is made more posit ive as they clutch memberJg" moves outward to the limit of its movement. Fig. il is an end view of one of the clutch members.' Fig. l2 is an end view of one of the trinke-blocks, and Fig. i3 is an interior view of the same brake-block shown in Fig. l2 looking' toward the left. 'lhe braliirg meehanism is, however, operative without said latch or said clutch. As shown in ltligs. 14 and l5, the part ll is squared, so as to 'lit within a squared portion of the brake-shot" J" when said brake-shoe. has been shifted to the proper extent. l`he end, however, of the block or part ll" is eonieal, so as to guide the brahe-slme J into proper contact and eor.- nection with the squared portion thereof.` 'li 'Fig'.l l5 the eonierl and squared port io s of the block ltl and tte,irteritally-squared cav ity or socket in the brake-shoe Jl are clearly shown.

lt has been found in'practice that the friction that may exist between the clutch members Jand J and the sleeve I is apt to cause ysaid parts to revolve together, and as another -ped aling.

`means for overcoming this friction between said parts and in order to cause the clutch members to respond at once to the action of the pedals l employ the lip Z2 upon the brake` shoe L. The tension of the spring' Bil tends to keep this lip in irictional contact at all times with the clutch member J, but with only enough pressure to overcome any pos sible .friction between said clutch members and the sleeve I. J and J are constructed so as to revolve easily on the'sleeve l, the inertia of said' clutch members is4 sufficient to permit them When the clutch members' to be moved apart or toward. each other on rotating the sleeve l by back or forward There are therefore in this device two separate and independently-operating holding means for holding the clutch` members J- J and each of them from rotation while they are being moved hmgitudinally by the shifting device, (the sleevev ll. One of these holding means is the laten j, carried by the clutch J and operating substantially as above describedy and. the other of these holding means is the lip l2 of the brake-shoe L, overhanging and pressing upon the exteriorofthe clutch device J. Each of these holding means is spring-pressed. The latch j is ay spring 'device seated in a recess, slot, or depression in the clutch-ring- J, embodying the .are held together by the spring M', so that the lip 2 presses with suitable `friction upon a corresponding portion or triction face or surface on the clutch-ring J. (.)f course the spring M being a split ring is capable. of such adjustability as to produce the desired friction for preventing rotation of the clutchring J, while the shifting device l is rotated to move the brake-shoe J longitudinally in the hub and to force it against the brake-surface on the ange b3 of the cup B2.

The operation of my device is as follows: When motion is conveyed tothe inner hub C in forward pedaling, said vhub rotates forwardly and the sleeve Vl is caused to rotate within the clutch members J and J" with their right and left hand screw-threads, re-

`speetively, and said members are carried toward yeach other until they come in contact with the conical portions t of the outer hub B, whereupon they lock said hub firmly to the sleeve. l and all ofthe parts are carried forward with the inner hub (l. At the saine time all pressure is removed from the frictional surface of the cup B3 and the frictionring' K on the one side of the hub, and from the brake-shoe L and the several surfaces with which it is adapted to engage on the other side bf the hub. Fig. 7 shows the position of these several parts in 'forward pedaling. In this figure the clutch is shown irren# IOO IIO

sleeve I, will be vthe brake-blocks tilt 'any of the bearings.

gri-gement and the several brake mechanisms' a re shown o utoi' engagement. It' the pedals are heid stationary while the hub revolves rorward, the sleeve'i and the clutch members I and il are stopped, which causes the clutch n'iembers to separate just enough to release irom the forward-driving position., thus treeing the hub and permitting it to revolve freely. The coasting position ot the clutch members is intorn'iediate between their braking positions and their driving positions. Ii' the rotation oi the pedals be reversed bv back pedaling, the inner hub C, and with it the rotated backwardl)7 and the clutch members l and -l/ will Vfor the reasons above explained be carried apart, and accordingly out of engagen'ient with the conical surliaces ol the outer hub B. The member .I as it moves longitudinallyr from engagement with the outer hub I3 brought into contact with the llange ./r oi the friction-ring K, and thereby iorcos the said friction-ring out against the friction-suriacc oit the cup orabut- I ment B3 and retards the forward rotation of the outer hub. fit the same time the other clutch member .l jas it moved longitudinally outward toward the other end ofthe hub and is forced against the inclined surfaces Zi. ot the brake-blocks l/ L2 L3 Irl brings said l'irake-l'ilocks against the ifriction-ring Il and also against the Ytriction-surface o1 theilange if* oi" the cup B" in the manner hereinbetore described` The said clutch member .l may rotate until the ond ot the latch c mes into engagement with one oi' the shoulders Z5, a-"ter which t'urther rotary movement oi the clutch members is prevented.A and they are separated and torce the brake-blocks vout against the irictiori-surfaces o? the hub in the manner above desc ibed Similar action occurs with the n'iodiiications shown Iin Figs. 11, 12, and 13. The contact ol the brakebloclrs with the revolving hub tends to cause the brake-blocks to turn with the hub. The block l, however, cannot turn, and therefore on the squared block E, and this causes a further pressure to expand the brake-blocks and to increase the braking pressure on the hub. Il" it is desired to stop the forward movement ot the bicycle abruptly,` greater pressure can be put upon the pedals. It should also be noticed that by the peculiar construction'and arrangement ot parts which. I haveshown and described above no pressure' is brought upon In this respect I havel obviated a very serious objection which is 'found in most ot the back-pedaling devices heretofore constructed.

What I claim isl. In a driving and coasting mechanism, the combination ol a hollow hub having bearings in its ends, a driving mechanism extending within the hub, a two-part clamping mechanism within'the hun, Vmeans operated l mechanism for 'moving the by saidy driving' clamping mechanism to and with reference thereto, a two-part clamping' mechanism upon said sleeve, said two parts being adapted to be moved to and from each other by said threaded sleeve, and a part within the hub and attached to the same and adapted to be clamped by said vclamping mechanism.

3.- In a driving and coasting mechanism, the combination of a hollow hub having bearings in its ends, a part extending within the hub, a sleeve having right and left threads thereon, said sleeve being upon 'said part of the driving mechanism within' the hub and longitudinally movable thereon but non-rotative with` refand a part attached to said a driving mechanism having l erence thereto, a clamping mechanism consisting ol two blocks .upon the `respective right and. lelt hand threads of said sleeve and adapted to be moved to and from each other thereby, and a part within the hub and attached to the same and adapted to be clamped bysaid clamping mechanism.

4. In a driving and coasting mechanism, the combination ot the hub B, having bearings in its ends, a driving mechanism comprising a sleeve C within the hub, a second sleeve I having external right and left hand threads thereon, the sleeve I being carried by the sleeve C and movable longitudinallyvthereon but `non-rotative with reference thereto, internally-threaded conical clutchblocksJ, J upon the respective right and lett hand threads of the sleeve I, and conical lclutch-surfaces b2, b2 within the hub, adapted to be clamped by said blocks, and a brake. mechanism actuated by said clamping mechanism.

5. In a coaster-brake mechanism, a hollow hub having bearings'in its ends, a driving mechanism extending within the hub, a twopart clamping mechanism within the hub, means operated by said'driving mechanism for moving the two partsA otl the clamping mechanism to and from each other, a part attached to said`hub and adapted to beclamped by the two parts oi' said clamping mechanism, and a brake mechanism actuated clamping mechanism. V

6. In a coaster-brake mechanism, the combinationoi1 a hollow hub having bearings in its ends, a driving mechanism extending within by Said the hub, a two-part clamping mechanism within the hub, screw mechanism upon said driving mechanism adapted to operate the tWo parts of said clamping mechanism, apart Within the hub and attached thereto and adapted to be clamped by the tivo parts ofsaid clamping mechanism, and a brake mechanism actuated by said clampingr mechanism.

7. In a coaster-brake mechanism, the conibinationiof a hollow hub having bearings at its ends, a driving mechanism including` a part extending Within the hub, an externallythreaded sleeve upon the part ot' the drivimgr mechanism within the hub, and longitudinally movable thereon but i'ion-rotative with reference thereto, a two-part clamping meehbeing upon said part et the drivingmechanism Within the hub andlongitudinalhY movable thereon but non-rotative with rcterencc thereto, a clamping mechanism consisting ot' two blocks Vupo'n. the respective right and lett hand threads of' said sleeve and adapted to be moved to and from each other thereby, a part within the hub and attached to the same and adapted to be clamped by said clamping mechanism, and a brakemechanism actuated b v said clamping mechanism,

9. In a (master-brake mechanism, the combination of the hub B, having; bearings in its ends, an axle A therefor, a dri vine' mechanism comprising;l a sleeve (l within the hub, a second sleeve I having' external right and lett hand threads thereon, the sleeve l being cai'- `ried by the sleeve C and movable longitudinally thereon but non-rotati ve with rctercmze thereto, internally-threaded conical clutchblocksJ, J', upon thercspective rie-htand lelt hand threads of the'sleeve l,` conical clutch- Surfaces b2, b2,Witi1in the hub adapted to be clamped. by said blocks, and a brake mechanism actuated by one ot' said blocks.

lt). lneu drivingr and coasting mechanism, the combination of a trame, a yhub revoluble on fixed bearingsv in 'the 'li-ame, a driving 'iriechanism, a screw device rotating" with said driving mechanism and capable ot longitu- ,dinal movement with reference thereto, and

'a clampingrb 'mechanism consisting'. of two parts operated by saidiscrew device to and from each other andI7 adapted to clamp the hub for driviner the same.

ll. llin a drivingP and coasting mechaiiism, the combination ot" a trame, a hub revoluble on ixcd-jbeariinrrs in.the l'rame, a driving' mechanism7 a screw device operated therebv,

and a clamping mechanism consisting,r of two parts operated b v said screw device to and from each other, and adapted to clamp they 1:5. in a brake mechanism for vehicle. wheels, the combinatuiii of a hub bearing` an internal cylindrical brake-surface, a stationary block having a portion non-cylindrical o'n its exterior, a series ot' brake-blocks fitting around said non-cylindrical portion, a driv.

ine' mechanism l'or said hub adapted to be released 'therel'ronn and means operated by backward movement ot the driving mechanism to cause the brake-blocks toturn/uponsaid stationar \r block wherein)f they are pressed against said bralie-surface! 14. ln a brake mechanism for vehiclewhecls, the combination ot a hub bearing an internal c vlindrical brake-surface, a stationary block havingr a squared portion, a series ot" brake-bhwlis fittingr around said squared portion` a drivin;y mechanism tor said hub adapted to be released therefrom, and means operated bv backward movement of the driving-mechanism tocausc the brake-blocks to turn 4upon said stationary block whereby they ai'e pressed against said brake-surface. 15. ln a coaster-brain` mechanism, .the combination ol' a hub havingl bearings7 a driving' mechanism, a screw device rotating with said drivingmechanism and capable oflongiltudinal movement lwith reference thereto, va clamping mechanism consist iner ot' tivo parts operated bv said screiv device to move lonlit ndinallv in opposite direeiions to and :from veach other as the driving mechanism is moved l'orivard oi' backward, and adapted to clan'ip the hub b v movement to or trom each other tor driving the same on t'orward move ment ol" thev drivin;v inechansm, and brake devices operated to press against the hub upon backward movement ol" the driving mechanism. l Y

i6. The combination olI a hub, havn-nga brake-surfaci-i 'and a elutchLsurl'ace therein, a iioii-rotative brake-shia and a rotative clutch Within the hub, said brake-shoe and clutch beine: movable longitudinally as to the h ub, a driving mechanism and means act-uated by the lr-vinea mechanism tor opei'atng said brake-shoe and clutch, wlierebv whencthe same are moved in oiie'direction the elutcli is set and the bralie released, and ivhen moved in the other direction, the brake is set and the clutch released, and ivhe'n in an intermediate position, the. hub is disconnected l'rom both and said clutch is operated' positively to clutch and to release the hub. l

IOO

IXO

clutch and brake surfaces, a drivin mechan- Ato ism, friction means within the, -hu for connecting the driving mechanism with said clutch and brake' surfaces, means Within the hub operatively connected with the driving mechanism for moving said friction' means lon itudinally of the hub, and means adapted e attached to the frame and extending Within the hub for preventing rotation of the said friction means When enga ing said brake-- surface, substanially as descried. i

18. In va coaster-brake mechanism, the combination of the hollowhub B having bearings in its ends, a drivingmechan'ism comprising a sleeve C Within the hub, a second sleeve I having external ridht and left hand threads thereon, the sleeveI being carried by the sleeve C and movable longitudinally thereon but non-rotative With reference thereto, internally-threaded conicalvclutch-blocks J, J', upon the respective lright and left hand threads of the sleeve I, the clutch-block J be- I ing'conical on its'outery end, conical clutchsurfaces b2, b2,-Within the hub adapted to be clamped by said blocks, an abutment at one end of the'hub, an internally conical brakeshoe in the other end of the hub composed of clutch-blocks L, L2, L3, L4, and the squared block E attached to the frame and fitting Within said clutch-blocks.,

' v19. In a coaster-brake mechanism, the

combination of thehollow hub B having bearings in its ends, a driving mechanism comprising a sleeve C Within the hub, a second sleeve I having external rightand left hand threads thereon, the sleeve I being carriad by the sleeve C and movable longitudinally thereon but non-retative with reference thereto, internally -threaded conical clutch-blocks J, J upon the respective right and leftv hand threads of the sleeve I, the clutch-block J being conical on its outer end, conical clutch-surfaces b2, b2, Within the hub adapted to be clamped by said blocks, an abutment at one endofmthe'hub, an internally conical brake-shoe in the' other end o' tbe hub composed of clutch-blocks L, L2, L3, lf, the squared block E attached to the frame and fitting within said clutch-blocks, and a.

lip on said brake-blocks engaging the cute surface oi the clutch-block J.

2D. In a coaster-brake mechanism, the combination of the hollow hub B having bearings in its ends, a drivingfmechanism comprising a sleeve C within the hub, a second sleeve I having external right and left hand threads thereon, the sleeve I being carried by the sleeve C and movable long1tudinally thereon but non-rotative Withgreference thereto, internally-threaded conical i I clutch-blocks J, J', u von the respective right and left hand threa s of the sleeve I, the clutch-block J being conical on its outer end,

conical clutch-surfaces b2, b2, Within the hub adapted to be clamped by'said blocks, an

device upon the clutch-block J for engaging notches on the'inner surface of' the brakeblocks and preventing the rotation of said clutch-block backward with relation thereto. 2l. In a coaster-lnake mechanism the combination of a hub having ball-bearings, a brake-surface and a clutch-surface g a brakeshoe 5 a friction-clutch movable longitudinally as to the hub and adapted tovoperate directly onthe brake-shoe to force it into enagement with theihub when moving in one direction and directly on the clutch-surface when moving in the other direction; a driving mechanism; and operating means for said. clutch, actuated by the driving mechanism whereby when the clutch is moved in one direction thc clutch is set and the'brake released, and when moved in the other direction the brake is set and the clutch released, and when. in any intermediate position-the hub 1s disconnected Yfrom both. I

22. In a coaster-brake mechanism, Athe tuated by the driving. mechanism whereby".

When the clutch is moved inlone direction the clutch is set andthe brake released,v and When moved in the-other direction, the brake is set and the clutch released, and Whenin any intermediate position the hub is disconfnected from both.

23. The combnaton ot an axle, a Wheelhub mounted to 'rotate about said axle and-` rovided With a brake-surface and a clutch- Face, a brake-shoe located in and movable; lon itudl'nally inthe hub, means for holding' sai brake-shoe frornrotation, a longitudinelly-movable vclutch device arranged between said brake-shoeand said clutch-face on the Wheel-hub', said clutch device having a I driving clutch-face coperating with said clutch-face on the hub, a shifting device for moving said clutch device longitudinally to nove sai d brake-shoe longitudinally, means for operating the shifting device, and a holding device to hold said clutch deviee'from rotation while being moved longitudinally. 24. The combination of an axle, a Wheel- 'hub mounted to'rotate about said axle`and rovided With a brake-surfacel and a clutchace,- a art consisting of a brake-shoe longitudinal y movable in said hub and having a brake-shoe from rotatie brake-shoe from rotation, a rotatable driv-` brakesurface cooperating with said .brakesurtace on the hub, means for holding the brake-shoe from rotation, a second part consist-ing of a longitudinally-movable clutchdevice arranged between said brake-shoe and said clutch-face on the hub, sa d clutch dcvice havirg a driving clutch-face cooperating .with said lutclif'iace on the hub and havin g a 'parts and acting to hold said. clutch device from rotation while being moved long'tudinally.

25. hub mounted to rotate about said axle and provided with a brake-surface and a clutch. face, a part consisting of a brake-shoe'lo'ngitudinally movable in -said hub and havlng a brake-surface cooperating with said bral esurface on the hub, means forholding tlie a, a rotatable drivingsleeve, va second part consfsting of a longitudii';allymovable clutch device provided with a clutch-face Acooperating with said clutch. face on the hub and with a face cooperating with a face on said brake-shoe, means'operated by said driving-sleeve for shifting said clutch device longitudinall and. a friction device carried by one of said7 parts adapted to cause fr..ctio`nal engagement between said two parts.

26. The combination of an axle, a wheelhub mounted to rotate about-said axle and provided with a brake-surface and a clutchvlace, a part consisting oi' a bral e-shoelocated in and longitudinally movable in the hub and provided with a braking-surface cooperating with said brakingsurface on the hub, meats for holding said brake-shoe 'from rotationfa rotatable driving-sleeve, a second part consisting of a longitudinally-movable clutch device provided witha clutchiace cooperating with said clutch-face on the hub, and with a iace cooperating with a face 'on said` brake-shoe, screwthreaded means operated by said driving-sleeve for shifting said clutch device longitudinally, and a frictiondevice carried by one of said parts and adapted to cause irlctioiial engagement between said two parts.

27. The combination of an axle, a wheelhub mounted to rotate about said axlel and provided with a brake-surface ard a clutch# lace, a' brakefshoe located. in and longitudinail y movable in the hub and provided with a brakng-suri'ace cooperating with said brak'ng-surface on the l'iubai'id with a secoizd lriction-suriacc,j means for holding saidv ing-sleeve, a longitudir:ally-n'iovable clutch device provided with a clutch-face cooperating with said clutch-face on thel hub, and willi a iacc cooperating with a face on said brake-shoe, means operated by said drivingsleeve for shifting said clutch device longitudliiially, and a vl'r'.ction-surface carried by said clutch device and adapted to frictionally engage with tlie friction-surface carried the brake-shoe, substantially as set forth.

28. The combination oi an axle, a Wheelhub mounted to rotate thereon and provided with a brake-surface and a clutch-iace, a part consisting of a brake-shoe arranged in said hub-between said brake-surface and said clutch-face and having a face cooperating with said bral e-surface and a friction-face', a part consisting of a longitudinally-movable clutch device arranged between said shoe The combination of an axle, a wheeland said clutch-face on. the hub', means for moving the samel longitudinally, a clutchface on said clutch device cooperating with said clutch-face on the hub, friction means carried by one' of said parts, and means for holding said friction means toward said friction-face on the brake-shoe and said clutchface on the hub, substantially as set forth The combination of`an axle, a hub mounted to rotate thereon'and provided with a brake-surface and a clutchface, a brakeshoe located in and longitudinally and radially movable in said hub betweensaid brakesurface and Asaid clutch-face and having an internal face, means for holding said brakeshoc from rotation, a clutch-ring arranged between said brake-shoe and .said clutchiaee on the hub and surrounded by said interna] frictiondace of the brake shoe, a spring-pressed friction holding device seated in a recess in said clutch-ring and with said internal face on the brake-shoe, and means for shifting said clutch-ring longitudinally.

30. The combination ci an axle, a'hub mounted to rotate thereon and rovided with a brake-surface and a clutch-tace, a brakesl'ioe located in and longitudinally and radially movable in said hub between said brake-` surface and said clutch-face and .having internal notches and a friction-face, means for holding said brake-shoe from rotation, a clutch-ring arranged between said brakeshoc and said clutch-face on the hub and surrounded. by said interna'l friction-face of the brake-shoe, a spring-pressed friction holding device seated in a recess in said clutch-ring. and cooperating with said internal notches on the brake-shoe, and means for shifting said clutch-ring longitudinally, substantially as set forth.

31. '1he coml` ination of an. axle, a hub imounted to rotate thereon and rovided with a brake-surface and a clutcliace, a brakeshoe arranged in the hub between said brakesurlace and said clutch-face and provided with an internal face, means lor holding said vbralxie-shoc from rotation, a loiigitudinallyf movable clutch-ring having a clutch-face co operating with said clutchface on the wheelbub, andl surrounded by said friction-face on lloo ros

'saidbrake-shoe, said clutch-ring'having a slot or depression therein, a holding .device located in said slot or de fression 1n the clutch-ring, a spring in said s ot beneath saidv holding device vand acting to move the same outwardly and into engagement with the internal face on the brakeshoe, andmeans for moving said clutch-ring laterally and rotating the same, substantially as set forth.

32, The combination of an axle, a wheelhnn mounted to rotate thereon and having a brale-surface and a conical clutch-face,n a

brake-shoe arranged in said hub between. said brake-surface and said conical clutchface and having an internal' face, means for holding said brake-shoe from rotation, a threaded operatingsleeve, a clutch-'ring having threads running on the threads ofsaid .Y holding device arranged in said slot, a spring ids'aid'slot beneath said friction holding device and tending to nieve the saine into engagement with said `internal face on the brake-shoe, means for holding said friction' holding device and spring from longitudinal movement on the clutch-ring, substantially as set forth.

33. The combination of an axle, a' Wheelhub mounted to rotate about said axle and rovided with a brake-surface and a clutchace, a brake-shoe longitudinally movable in said hub and having a brake-surface coperating With said brake-surface Von the hub,

lmeans for holding the brake-shoe 'from rotation, a longitudinally-movable clutch device arranged between said brake-shoe and said clutch-face on the hub, said clutch device having a drivin clutch-face eo yerating with said clutchace on the hub, an having a part adapted to engage said brake-shoe to move 'the same longitudinally, means for shifting said clutch device longitudinally, and holding devices carried by said clutch device and acting to hold the same from rotation While being moved longitudinally,

substantially as set forth.

GEORGE H. CHENEY. f

Witnesses:

KATHARINE`rl R. SPENCER, ANNA G. MEAGHER. 

